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CARBORANE/SILOXANE ELASTOMER COATING FOR FUSER MEMBERS IN ELECTROSTATIC COPIERS

IP.com Disclosure Number: IPCOM000023948D
Original Publication Date: 1979-Jun-30
Included in the Prior Art Database: 2004-Apr-01
Document File: 2 page(s) / 434K

Publishing Venue

Xerox Disclosure Journal

Abstract

Silicone rubber surfaces for fixing resinous powder images to a substrate at elevated temperatures in a xerographic reproducing apparatus are well known. In U.S. Patents 3,731,358; 4,000,339; and 4,054,410, various fuser members are

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XEROX DISCLOSURE JOURNAL

CARBORANE/SILOXANE ELASTOM ER Proposed Classification ~ U.S. CL 29/132 ELECTROSTATIC COPIERS mt. CL B21b 31/08 Charles Scouten

Silicone rubber surfaces for fixing resinous powder images to a substrate at elevated temperatures in a xerographic reproducing apparatus are well known. In
U.S. Patents 3,731,358; 4,000,339; and 4,054,410, various fuser members are fabricated by applying in a suitable manner a solid layer of silicone rubber to a rigid core or substrate.

The present disclosure relates to a fuser member construction wherein a carborane/siloxane elastomer is applied in any suitable manner as a solid layer of material to a rigid core or substrate. In preferred embodiments, the fuser member is in the form of a roll or cylinder. Fuser rolls having the carborane/siloxane elastomer coating have improved thermochemical and thermomechanical stability and improved heat transfer properties. The carborane/siloxane elastomer can be applied to the rigid core or substrate in thicknesses which produce a conformable fuser member having several advantages over hard roll fuser members.

The carborane/siloxane elastomers have long~term hydrolytic and oxidative stability at high temperatures as well as outstanding resistance to solvent swelling. Carborane/siloxane elastomers are well known in the art and are described, for example, by Peters et al. in Rubber Chemistry and Technology, Volume 48, No. 1, March~April 1975 on pages 14 - 18. Preferred carborane/~iloxane elastomers incorporate the meta-carborane structure, C

                                2B10H into the siloxane backbone. The polymer backbone structure wherein a = 1 part and b = 0.002 to 0.01 part is shown below:

-.0~

CH 3

CH 3

-ia

0~ Si~

R2~

0=

Volume 4 Number 3 May/june 1979 281

C

BH

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CARBORANE/SILOXANE ELASTOMER COATINGS FOR FUSER MEMBERS IN ELECTROSTATIC COPIERS (Cont~d)

Specific elastomers are designated by the various...